baber/WOPTO huggingface dataset:
Patent GB-356424-A (GB)
Title: Improvements in variable speed gears
IPC: F16H37/08
Filed: 1930-08-12
Abstract: 356,424. Variable-speed gearing. SHAW, H. S. HELE- and BEACHAM, T. E., 64, Victoria Street, London. Aug. 12, 1930, No. 24082. [Class 80 (ii).] Variable-speed gearing comprises a friction disc a, Fig. 3, engaging rollers b<1>, b<2> connected by an epicyclic train and operating simultaneously by precession to change speed. The precession and therefore the speed may be controlled by the torque reaction. The disc a drives and the driven element is the carrier e of the planet pinions d<1>, Fig. 1, which is connected through sliding and universal joints f<3>, f<1> to the driven shaft f. The geared rollers are grouped into a block by a carrier frame h which is held with the rollers b<1>, b<2> pressed against the disc a by the reaction of springs n<3> upon a roller n running on a race n<2> in the casing p. The block can move up or down to bring the rollers in contact with disc a above or below a diameter thereby initiating precession to change the gear up or down, respectively. This up and down displacement is effected automatically by torque reaction opposing springs. The roller frame h is connected by a link h<8>, Fig. 1, to a spring i<1>, which rests upon a carrier frame i, takes the weight of the geared rollers, and resists their tendency to be moved downwards by torque. A small spring i<2> resists the upward torque movement when the speed is such as to produce it. In addition to the control by torque is a manual control which tilts the frame i down or up about pivot h<6>. Upon a pin i<5> on that frame is a bowl i<3> engaging an inclined slot in a guide m which screws along a rod k<1> when that rod is turned by a handwheel. In a modification, the frame i is tilted by a control crank and the torque reaction is used also to press the gear rollers b<1>, b<2> against the disc a. A subsidiary lever turns an eccentric within presser roller n producing thrust as a function of load. A construction is indicated in which one of the rollers is the driver, the disc transmits power to the other roller and the driven member is the carrier of connecting planets, as before.
Patent GB-810443-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/12
Filed: 1955-05-02
Abstract: 810,443. Mounting electric motors. ELECTROLUX Ltd. May 2, 1955 [May 19, 1954], No. 24104/57. Divided out of 810,441, [Group XXVIII]. Class 35. [Also in Group XXV] A motor fan unit 20 is resiliently supported within a vacuum cleaner tubular housing 10 by a mounting which includes a resilient diaphragm 16 mounted on the unit and provided adjacent its radially outer edge with a locking ring 93 having alternate radially extending projections 95 and recesses complementary to those formed on the inner periphery of a radially inwardly projecting rib 12 secured to the housing inner surface; the unit, after being passed partially through the opening formed by rib 12 and then so angularly displaced that the projections are opposite one another, is secured by screws 94 which clamp the ring projections 95 and the diaphragm 86 about opposite, faces of the rib 12. The pressure exerted by screws 94 is distributed by a ring 97 seated under their heads; the screws furthermore clamp between a U-fold in the diaphragm 86 a ring 90 to the inner portion of which lugs 88 integral with the motor housing 87 arc secured to opposed pairs of conical springs 85 compressed by shouldered screws 89 and spacer sleeves 91, nuts 92 securing the screws to the ring 90. The diaphragm 86, preferably of rubber, has an axial flange 98 to electrically insulate the mounting from the housing 10 and a part 99 and another axial flange 100 to form an air-sealing partition extending between the unit and the housing 10 to force all the air drawn in by the fan to pass through the motor housing.
Patent GB-204864-A (GB)
Title: Divided ball bearing with semi-circular race rings
IPC: F16C33/60
Filed: 1922-09-06
Abstract: 204,864. Gr÷nqvist, A. Sept. 6, 1922. Ball bearings. - The race rings of a ball bearing are each divided into two semicircular parts which are locked together by similarly divided rings e, e<1>, which are inserted in undercut grooves in the race rings and rotated so as to break joint. In addition studs may be used to hold the rings in the locking position. The ball cage is also divided. In a modification, the grooves to receive the locking-rings are formed in the outer cylindrical surface of the outer race ring and in the inner surface of the inner ring.
Patent GB-150322-A (GB)
Title: Improvements in and relating to vibration apparatus, particularly for the reception and production of sound waves
IPC: G01S1/72
Filed: 1920-08-20
Abstract: 150,322. Signal Ges. Aug. 21, 1919, [Convention date]. Receiving audible signals; subaqueous audible signals.-In electro-magnetic vibratory apparatus for producing or receiving sound in which a moving conductor oscillates in a magnetic field, the conductor forms part of, or itself constitutes, a vibratory structure such that by suitably adjusting the size, shape, and distribution of the masses of the structure, the required ratio between the amplitudes of oscillation of the conductor and the diaphragm or other member which directly receives or transmits the sounds, can be obtained. By combining the electromagnetic device with one or more additional vibratory structures, the apparatus may be made resonant, by suitable tuning of the structures, to frequencies corresponding in number with the vibratory structures used, or to frequencies lying between predetermined limits. Fig. 1 shows a form in which the moving conductor is a coil 2 secured to the diaphragm 1 and oscillating in an air-gap in a magnet 4, alternating current being supplied to a winding 3. In another form (not shown), the moving conductor is a cylinder oscillating in an air-gap in the magnet, and connected to the diaphragm by an arcuate elastic member. Fig. 3 shows the moving conductor as a coil 2 oscillating in the gap of an electro-magnet 4 and mounted on a diaphragm 9. Direct current is supplied to a winding 6, and alternating current to a winding 3. Diaphragm 9 is connected by a mass 8 with the sound radiating diaphragm 1 mounted in a casing 7.
Patent GB-775581-A (GB)
Title: Improvements in the manufacture of dielectric materials
Inventor: BOUD ALAN HUGH
IPC: H01B3/44
Filed: 1954-08-20
Abstract: Isomeric mixtures of trifluoromethyldiphenyl are obtained by the reaction between a free-radical forming organic peroxide and a trifluoromethyl compound of the formula <FORM:0775581/IV(b)/1> by a free radical reaction.  In an example benzoyl peroxide reacts with benzotrifluoride to give a mixture of 2-, 3-, and 4-, trifluoromethyldiphenyl.  Other free - radical - forming organic peroxides which may be used include t.-butyl peroxide and other alkyl peroxides of up to 4 carbon atoms and alkyl substituted benzoyl peroxides, the former giving, as products, mixtures of trifluoromethyl alkyl aryl compounds.
Patent GB-483128-A (GB)
Title: Improvements in and relating to arc-extinguishing means for electric switches
IPC: H01B3/44
Filed: 1937-09-08
Abstract: The walls of an arc-extinguishing tube or chamber for switches or fuses consist of or contain a polymerized derivative of acrylic acid or a homologue thereof.  Polymerized esters of acrylic acid or its homologues, particularly those containing alkyl groups with few carbon atoms, such as methacrylic acid methyl ester, are particularly suitable, and nitrogen containing derivatives such as the nitriles and amides may be used.  Mixed acrylic acid derivatives may also be employed, the mixture being effected either before or after polymerization.  Filling materials which disintegrate into gaseous products on heating, e.g. urea resins, oxamide and methylene urea may also be added as filling materials. The polymerized materials may be applied in solution to walls of more mechanically resistant material, e.g. hard paper, and the solvent subsequently evaporated. Specification 467,496 is referred to.
Patent GB-660200-A (GB)
Title: Improvements in or relating to power-driven spraying vehicles
Inventor: LURY MARK
IPC: A01M7/00
Filed: 1948-09-20
Abstract: 660,200. Manure &c. distributers PEST CONTROL, Ltd. Sept. 20, 1949 [Sept. 20, 1948], No. 24611/48. Class 6(i) [Also in Groups XXIX and XXXI] A power driven spraying vehicle is provided with a transmission system adapted for forward and rearward drive and controls are provided adapted to be operated by the driver from either of two alternative positions facing respectively forwards and rearwards of the vehicle. Two sets of foot pedals are provided and the driver's seat 10 and steering mechanism 11 are arranged to pivot through 180 degrees. As shown a tank 6 is provided and the liquid or powder is fed to foldable looms 7b by means driven from a power take-off. The cab 9 which may be made air tight is situated by the side of the engine. It is stated in the Provisional Specification that a tractor may be converted for use as a spraying vehicle.
Patent GB-629719-A (GB)
Title: Improvements in or relating to the preparation of monochloromethyl silicon chlorides
IPC: C07F7/12
Filed: 1947-09-08
Abstract: Monochlormethyl silicon chlorides are prepared by continuously charging methyl silicon chloride into a reaction zone, continuously charging chlorine into said reaction zone, maintaining the rate of charging chlorine relative to the rate of charging the methyl silicon chloride sufficiently low that methyl silicon chloride is maintained in the reaction zone continuously, whereby the methyl silicon chloride is chlorinated and continuously removing the chlorinated methyl silicon chloride from the reaction zone.  The rate of charging chlorine may be less than sufficient to form the monochloro derivative of the methyl silicon chloride.  The temperature of the reaction zone may be below the boiling point of the methyl silicon chloride so that methyl silicon chloride and monochlormethyl silicon chloride are continuously removed from the reaction zone, or may be between the boiling points of the methyl silicon chloride and of the monochlor derivative, whereby the monochlor derivative condenses upon formation.  The rate of reaction may be accelerated by exposing the reaction zone to light or a catalyst may be employed. In examples, monochlormethyl dimethyl silicon chloride, monochlormethyl methyl silicon dichloride and monochlormethyl silicon trichloride are prepared.  Flow diagrams for a liquid phase and vapour phase reaction are given.
Patent GB-1061078-A (GB)
Title: Power operated hatch cover assembly
IPC: B63B19/197
Filed: 1964-06-15
Abstract: 1,061,078. Hatch cover operating mechanism; power operated hinges. FULLER CO. June 15, 1964 [July 3, 1963], No. 24698/64. Headings E2F and E2M. [Also in Division Fl] A power operated hatch cover comprises a pair of panels 20 pivotally connected together at their adjacent edges by a pair of spaced, parallel, rotary hydraulic actuators, the outer side of one panel being pivoted at 31 to a bracket 33 and the outer side of the other panel having rollers 36 that run on rails 13. The actuators (see Division F1) are of the rotary vane type and the shaft of each actuator is splined for engagement with brackets (103) secured to the panels. The actuators are bolted together to form an integral unit 35. A hook 97 prevents inadvertent closing of the panels.
Patent GB-1218716-A (GB)
Title: Process for the polymerisation of olefins
IPC: C08F10/00
Filed: 1969-05-14
Abstract: 1,218,716. Polymerization of olefins. MITSUBISHI CHEMICAL INDUSTRIES Ltd. 14 May, 1969 [14 May, 1968], No. 24712/69. Heading C3P. Olefins are polymerized at a temperature from ambient to 250 C. and a pressure of 1-100 atmos. in the presence of a catalyst comprising (a) chromium oxide supported on a refractory oxide and (b) a pentaalkylsiloxyalane of the formula R 3 SiOAlR 2  wherein each R independently is C 1-10  alkyl. Examples describe the polymerization of ethylene optionally with a small amount of propylene, in a n-heptane solvent in the presence of hydrogen, using as catalyst chromium trioxide supported on silica and Si - trimethyl - Al -  diethylsiloxyalane, pentamethylsiloxyalane, Si - trimethyl - Al - diisobutylsiloxyalane, and Si - trimethyl - Al - dioctylsiloxyalane.
Patent GB-818005-A (GB)
Title: Band type cutoff saw
IPC: B23D53/04
Filed: 1956-08-13
Abstract: 818,005. Pulleys. CONTINENTAL MACHINES Inc. Aug. 13, 1956 [Sept. 12, 1955], No. 24746/56. Class.80 (1). [Also in Group XXIII] The driving pulley 28 for a band-saw blade has internal gear teeth 36 meshing with a motor-driven pinion and has a taper of not more than 3 degrees inwards from a flange 66 so that the blade tends to move towards the flange. Circumferential grooves 67 are provided so that the reduction in the area of contact between the blade and the pulley forces cutting lubricant from the blade into the grooves and reduces slippage.
Patent GB-1316667-A (GB)
Title: Benzobrazanquinone pigments
IPC: G03G17/04
Filed: 1970-05-22
Abstract: 1316667 Electro-photographic developers XEROX CORP 21 May 1970 [26 May 1969] 24637/70 Heading G2H [Also in Division C4] Benzobrazanquinone pigments of the general formula wherein R 7  is NH, O, S, or Se, R 1 -R 6  are carbon or nitrogen, 0-4 of R 1 -R 6  being nitrogen; X is alkyl e.g. CH 3  or C 2 H 5 , aryl, alkoxy e.g. OCH 3 NOC 2 H 5 , carboxylic acid or ester e.g. COOCH 3  or COOC 2 H 5 , CF 3 , NO 2 , CN, SO 2 NH 2 , SO 2 NHC 6 H 5 , Cl, Br, I, F, or H: m is an integer from 0-10 when R 7  # NH and from 1 to 10 when R 7  = NH; and n is an integer from 1-5, are used in electrophoretic imaging processes.
Patent GB-448663-A (GB)
Title: Improvements relating to heat-insulating bricks or blocks for use in furnaces, kilns and the like
IPC: F23M5/02
Filed: 1935-09-09
Abstract: 448,663. Furnace bricks. ALLEN, H. V., Glenwood, Southowram, Halifax, Yorkshire. Sept. 9,1935, No. 25001. [Classes 51 (i) and 51 (ii)] [See also Group V] In the manufacture of furnace bricks of the kind having a hard fire-resisting face A and a heat-insulating porous backing B, the backing, Fig. 3, or the face, Fig. 4, is moulded with a key projection D on one side and is then burnt, the facing layer A, Fig. 3, or the porous backing B, Fig. 4, being subsequently moulded around the projection and the entire composite brick burnt.
Patent GB-832406-A (GB)
Title: Improvements in or relating to electric dry batteries
IPC: H01M50/107
Filed: 1957-08-08
Abstract: 832,406. Batteries. NING, T. July 17, 1958 [Aug. 8, 1957], No. 25064/57. Class 53. A dry cell comprises a cup-shaped electrode 26 enclosed in an insulating casing 14, the base 15 of which is provided with an opening 17 through which contact with the base of the electrode 26 is made by a corrugation on a terminal plate 27. A second corrugation 29 surrounds the opening 17 and helps to keep the base 15 pressed against the bottom of the electrode. The base 15 and plate 27 are held in position by folding over and bending inwardly the lower end of the cylindrical wall of the casing. The rim of the plate 27 is provided with slits to enable it to be folded and bent. The upper end of the casing is continued over the rim of the electrode 26 to form a closure 16 in which an opening 18 is formed to expose the electrode 12. A fluid-tight seal is made round the opening 18 by the terminal plate 20 which is formed with a flange 22 which surrounds the inner wall of the opening 18 and makes contact with the top of the electrode 12. The plate 20 is held in position at its rim by insulation 25. Fig. 3 shows a modification in which the top of the cell is bent inwardly as shown at 41. Expansion of the cell contents presses the part 41 upwardly, air being expelled from the upper part of the cell through openings in the terminal plate 39. A bead 38 in the outer electrode limits downward movement of the plate 39 when the rim 35 of the casing is bent inwardly. Fig. 4 shows a modification in which the rim 58 of the outer electrode is folded over a plastic disc 57 above which is a space enclosed by the top 66 of the casing which is pleated as shown at 65 and provided with a tubular extension 67 closed at the upper end. A terminal plate 54 seals the opening in the casing above the central electrode. Gas evolved in the cell causes the pleats to expand as shown at 66. The gas may be released by opening the tube 67. The terminal plate 55 at the bottom of the cell is provided with a corrugation 62 which makes contact with the bottom of the outer electrode. The plate 55 is secured in position by a plastic ring 63 sealed to the casing of the cell.
Patent GB-203531-A (GB)
Title: An improved rope stopper
IPC: B66B7/08
Filed: 1922-09-18
Abstract: 203,531. Bullivant, F. A., and Selby, G. M. Sept. 18, 1922. Rope grips.-Relates to rope stoppers of the kind comprising a pair of wedges capable of gripping a rope between them and slidable longitudinally in a wedge-shaped part of a casing. The casting A, which may have projections on its underside to act as feet or to embrace a rail and ear-pieces a<2> perforated to receive a suspending rope or the like, is formed with a wedgeshaped recess a<3> to receive two wedge-pieces B, B2. Cover-pieces C, C<2> are secured by the screws c with a gap between them sufficient to receive the rope f. In the outer faces of the wedgepieces are inclined grooves b, b<2> parallel with the inclined walls of the recess, and screws or pins d, d<2> in the cover-pieces enter the inclined grooves and act as guides for the wedge-pieces. A plate b<3> screwed on the wedge-piece B engages a corresponding groove in the wedge-piece B<2>, thus acting as a transverse guide. The inner faces of the wedge-pieces may have projections to give a firmer grip on the rope.
Patent GB-508156-A (GB)
Title: Improvements relating to sideboards
IPC: A47B81/04
Filed: 1938-08-29
Abstract: 508,156. Sideboards. BEAUTILITY FURNITURE, Ltd., and SADOW, G. Aug., 29, 1938; No. 25309. [Class 52 (i)] A sideboard has at one or both ends of its top a drawer 5 provided with a lid 11 and fitted for holding cutlery. The sides of the drawer extend rearwardly to .form supports when it is withdrawn.
Patent GB-631292-A (GB)
Title: Improvements in or relating to glass feeder shear mechanism actuating means
IPC: C03B7/10
Filed: 1947-09-16
Abstract: 631,292. Glass shearing mechanism. HARTFORD-EMPIRE CO. Sept. 16, 1947, No. 25311. Convention date, Nov. 20, 1946. [Class 56] Glass shearing mechanisms comprise a pair of relatively movable openable and closable blades 7, 8, a cam-actuated linkage system 14 operatively connected thereto to move them in one stroke, and pneumatic means 17 operatively connected thereto to move them in the reverse stroke. The shear blades 7, 8 are mounted on arms 1, 2 which pivot on shafts 3, 4 having intermeshing gears 5, 6, the closing mechanism includes a cylinder 17, pipes 52, 51, trip valve 36 and cam track 50, and the opening system has a linkage 14 universally mounted at 16 and adjusted at 15, lever 12 pivoted at 13, follower 11 and cam 10. Trip valve 36 is opened when the cam track 50 on the rotating cam-shaft 9 forces the lever 49 upwards so that it seals the bottom of the valve and raises the valve member 39, lifting the conical face 43 off the face 44 of the valve guide. Pressurized fluid then passes through the pipe 46, regulating valve 47, space 36a and clearance space 40a in the valve member to the pipes 51, 52, 26 to the inlet 25 of the cylinder 17. The piston 23 through the rod 18 exerts a pull on the ear 20 of arm 1 tending to close the shears, and this pull through the linkage 14 causes the roller 11  to follow the cam 10. On further rotation of the cam 10 the follower 11 moves into the minimum point 10b so that the shears are closed by the pull of the cylinder 17, the portion 17a of which is exhausted through spring valve 30. As the shaft 9 rotates further the roller 11 leaves the point 10b and through the linkage 14 opens the shears, and the lever 49 rides off the track 50 so that the member 39 is lowered to seal the valve at 43. Thus entry of fluid through pipe 46 is prevented, but fluid from port 17b of the cylinder escapes to the atmosphere through pipe 51 and grooves 40 of the member 39. During this second movement of the piston 23, the gradual evacuation of the portion 17b causes an initiating dashpot effect which opposes the acceleration of the roller 11  and prevents it bouncing &c. on the cam 10. The magnitude of the vacuum is regulated by means of the throttle valve 29 which permits air to enter the portion 17a, Specification 227,078, [Class 56], is referred to.
Patent GB-1114568-A (GB)
Title: Gas-bearing assembly
IPC: F01D25/22
Filed: 1965-06-16
Abstract: 1,114,568. Bearings. UNION CARBIDE CORPORATION. 16 June, 1965 [16 July, 1964 (2)], No. 25389/65. Heading F2A. A gas-lubricated bearing has resilient means positioned between a non-rotating member of the bearing and its support member. In an embodiment, the resilient means 16, Fig. 1, is located between a non-rotating shaft 12 and its support 17. The resilient means 16 may be elastic material such as silicone elastomer or polyethylene, may be springs, may be mats of metallic or non-metallic fibres and may be magnetic suspension. Pressurized gas is supplied through bores 14 and 15 in the shaft 12 to a clearance 18 between said shaft and a rotor 11 mounted therabout. In other embodiments, the resilient means comprises a suspension wire 26a, Fig. 4, one end of which is secured to a non-rotating shaft 22 and the other end of which is supported by a member 34, axial damping being effected by a resilient washer 26b; comprises metal rods or tubes 50, Fig. 5, each of which is secured to one end of a non- rotating shaft 42 and to a fixed structure, damping being effected by lead-shot in cavities 51; and comprises circular springs 123 and 125, Fig. 7, radial springs 123, Figs. 8 and 9 (not shown), coil springs 137, Fig. 10 (not shown), and corrugated metal springs 123, Figs. 11 and 12 (not shown).
Patent GB-812573-A (GB)
Title: Improvements in or relating to two-speed mechanical drives
Inventor: BRAZENDALE JAMES DEREK
IPC: F16H3/00
Filed: 1956-08-21
Abstract: 812,573. Two-speed gear. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. April 12, 1957 [Aug. 21, 1956], No. 25512/56. Classes 80 (1) and 80 (2). A two-speed drive for radio tuning comprises a threaded driving shaft 3, a worm 4 screwed on the shaft and in engagement with a worm wheel 5 fast on a driven shaft 2, and stops 6, 7 freely rotatable on the shaft to limit the longitudinal movement of the worm. Rotation of the driving shaft when the worm is in the intermediate position causes the worm to move longitudinally across the worm wheel and to drive it slowly by a rack and pinion action at a ratio dependent on the pitch of the screw thread. When the longitudinal travel of the worm is stopped at 6 or 7 it rotates with the driving shaft and drives as an ordinary worm.